# Question #10e47

##### 2 Answers

Toque applied =

#### Explanation:

Here,by applying the torque angular retardation was done to stop its motion(considering no skidding was there).

so, angular retardation=

Now, torque =

moment of inertia of a cylinder passing through its axis is

so.

so,angular power required =

#### Explanation:

The torque and the angular acceleration are related

The moment of inertia of the solid cylinder is

The mass of the cylinder is

The radius of the cylinder is

The moment of inertia is

The initial angular velocity is

The final angular velocity is

The time is

Apply the equation (to find the angular acceleration

The torque to be applied is

The power is